string name;
	int reference,pincode;

	cout << "Please enter your name: ";
	getline(cin, name);
	cout << name << " you have not created a PIN code, please create one now. Enter your new PIN: ";
	cin >> reference;
	if (reference > 1000 || reference == 0000)
	{
		cout << "Thank you! You're PIN has been successfully registered" << endl;
	}
	else
	{
		while (reference < 1000 || reference > 9999)
		{
			cout << "The PIN must be 4 digits. Please re-enter your pin.";
			cin >> reference;
		}
	}
	cout << "Hello " << name << "! Please enter your PIN: ";

	cin >> pincode;

	if (pincode == reference)
	{
		cout << "Welcome to the bank! What can we help you with today?" << endl;
		displayMenu();
	}
	else
	{
		cout << "Invalid PIN number, please restart the program and try again." << endl;
	}